Type definitions missing error object in return type

[vettloffah]

When an api call doesn't succeed, there is an "errors" property returned from swellj-s. For example:

const cart = await swell.cart.get()
if(cart.errors){
 // handle errors
}

This isn't accounted for the in the type definitions. The return type is just Promise<swell.Cart> and Cart doesn't include errors so trying to handle errors is showing a type error warning as of swell-js 3.21.2